112 lines
3.2 KiB
SQL
112 lines
3.2 KiB
SQL
CREATE TABLE t1 ( a VARCHAR(10), b VARCHAR(10) );
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INSERT INTO t1 VALUES ( 'abc', 'def' ), ( 'ghi', 'klm' ), ( 'nop', 'qrs' );
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CREATE TABLE t2 ( a VARCHAR(10) );
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INSERT INTO t2 VALUES ( 'abc' ), ( 'klm' );
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--echo # Test of literals matching.
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT ?', 'SELECT "literal"' );
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SELECT * FROM query_rewrite.rewrite_rules;
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CALL query_rewrite.flush_rewrite_rules();
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SELECT * FROM query_rewrite.rewrite_rules;
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SELECT NULL;
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SELECT 'abc';
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SELECT 1;
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SELECT 1.1;
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SELECT 123456789123456789123456789123456789123456789123456789;
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--echo # Check our status variables.
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SHOW STATUS LIKE 'Rewriter%';
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DELETE FROM query_rewrite.rewrite_rules;
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT * FROM test.t1 WHERE ( a = ? AND TRUE ) OR b = ?',
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'SELECT a FROM test.t1 WHERE a = ?' ),
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( 'SELECT a FROM test.t1',
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'SELECT * FROM test.t1 WHERE a = \'abc\'' ),
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( 'SELECT a FROM test.t1 WHERE b = ?',
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'SELECT * FROM test.t1 WHERE b = ?' ),
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( 'SELECT * FROM test.t2',
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'SELECT * FROM test.t1 JOIN test.t2 ON t1.a = t2.a' ),
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( 'SELECT * FROM test.t1 WHERE a = ? OR b = ?',
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'SELECT * FROM test.t1 WHERE b = ? OR a = ?' );
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SELECT * FROM query_rewrite.rewrite_rules;
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CALL query_rewrite.flush_rewrite_rules();
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SELECT * FROM query_rewrite.rewrite_rules;
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--echo # Check a query that doesn't have a rewrite rule doesn't get rewritten.
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SELECT b FROM test.t1;
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--echo # Check a query with just one parameter.
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SELECT a FROM test.t1 WHERE b = 'qrs';
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--echo # Check a rule with parameter truncation (fewer parameters in the
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--echo # output query than in the input query);
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SELECT * FROM test.t1 WHERE ( a = 'abc' AND TRUE ) OR b = 'klm';
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SELECT * FROM test.t1 WHERE ( a = 'abc' AND FALSE ) OR b = 'klm';
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--echo # Check a non parameterized query.
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SELECT * from t1 WHERE a = 'abc';
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--echo # Check that a non-rewritten query does not yield a warning.
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SELECT b FROM test.t1;
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--echo # Check that a query is not rewritten if the query corresponds to a
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--echo # replacement.
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SELECT a FROM test.t1;
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--echo # Check that we can execute a rewrite more than once.
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SELECT * FROM test.t2;
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SELECT * FROM test.t2;
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--echo # Remove the warnings.
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SELECT b FROM test.t1;
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--echo # Check parameter switching in a query rewrite
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SELECT * FROM test.t1 WHERE a = 'def' OR b = 'ghi';
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--echo # Verify with whitespace.
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SELECT * FROM test.t1 WHERE a = 'def' OR b = 'ghi';
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--echo # Verify with comments.
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SELECT * FROM test.t1 WHERE a =/* 'def' ? */'def' OR b = 'ghi';
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--echo # Check our status variables.
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SHOW STATUS LIKE 'Rewriter%';
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DROP TABLE t1;
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DROP TABLE t2;
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DELETE FROM query_rewrite.rewrite_rules;
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--echo # Test of literals matching.
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT 1, ?', 'SELECT "rewritten w/rule 1"' ),
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( 'SELECT 2, ?', 'SELECT "rewritten w/rule 2"' ),
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( 'SELECT "The_original_query"', 'SELECT "The_rewritten_query"');
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SELECT * FROM query_rewrite.rewrite_rules;
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CALL query_rewrite.flush_rewrite_rules();
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SELECT * FROM query_rewrite.rewrite_rules;
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SELECT 1, 1;
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SELECT 1, 2;
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SELECT 2, 1;
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SELECT 2, 2;
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SELECT 3, 1;
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SELECT 3, 2;
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SELECT 'The_original_query';
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DELETE FROM query_rewrite.rewrite_rules;
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